Gabriela C. answered 07/09/19
Perspective and intention is what matters
Hello!,
I saw your interest in Irezumi and you are correct, it can get confusing understanding the history behind the art of tattoo. Since I am not knowledgeable I did some research for you and found a book sold on amazon that illustrates as well as describe the history of the Irezumi work.
Tattoos as Punishment: An Illustrated History of Tattooing in Japan
If it helps for next time when you are searching for the artwork in itself instead of what it is used for you might want to use words like "origin" and "history of".
Hope this helps, there was also many videos on this topic as well on amazon.